An ecological approach to the distribution of Astacopsidrilus naceri in wells and hyporheic zone of rivers in the western High
Atlas (Morocco) has enabled us to categorise this n. species as a member of stygofauna and demonstrate its preference for hyporheic
biotopes and sandy sediments, as well as the preponderant role of granulometric factors in its distribution.
The gut content of two taxa, Astacopsidrilus and Trichodrilus, cohabiting and predominating the oligochaete fauna in the
underflow of Oued Makhfaman, a tributary of Oued N'Fis (High Atlas, near Marrakech), could be characterized by the amount
and size of the ingested sandy particles. This analysis showed a greater absorbency of the digestive system of Astacopsidrilus
naceri, in comparison with to the genus Trichodrilus which is strictly limivorous. This suggests a competitiveness between these
two taxa.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.